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5-1-3 Flash Memory Precautions
Observe the following precautions to protect the flash memory and ensure
proper operation.
1, 2, 3...
1. If the power is turned off without changing the mode after having made chan-
ges in the read-only DM area (DM 6144 through DM 6599), or PC Setup (DM
6600 through DM 6655), the contents of changes will not be written to flash
memory. Therefore, if the power is turned off for more than 20 days (at
25
_
C), contents of changes (contents of the RAM) will disappear and the
data values will become undefined values. For details, refer to 2-1-2 Char-
acteristics.
The changes can be saved by switching the CPM1 to RUN or MONITOR
mode or turning on the CPM1 soon after the changes are made.
2. When the CPM1 is operated for the first time after changing the program, the
read-only DM area (DM 6144 through DM 6599) or PC Setup (DM 6600
through DM 6655) will take about 600 ms longer than usual. Be sure to take
this one-time startup delay into account.
3. If one of the following three operations is performed in MONITOR or RUN
mode, the CPM1 will extend the cycle time for up to 600 ms and interrupts
will be disabled while the program or PC Setup is being overwritten.
•
Program changes with the online edit operation
•
Changes to the read-only DM area (DM 6144 through DM 6599)
•
Changes to the PC Setup (DM 6600 through DM 6655)
A “SCAN TIME OVER” error won’t occur during these operations. The
CPM1’s I/O response times may be affected when the online edit operation
is being performed.
Initial System Checks and Test Run Procedure
Section 5-1
Summary of Contents for SYSMAC CPM1
Page 1: ...Cat No W262 E1 4 Programmable Controllers SYSMAC CPM1 OPERATION MANUAL ...
Page 2: ...CPM1 Programmable Controllers Operation Manual Revised February 1998 ...
Page 116: ...105 Appendix B Dimensions All dimensions are in millimeters CPM1 10CDR j 121 130 85 81 90 ...
Page 118: ...Appendix B Dimensions 107 CPM1 20EDR 81 90 171 180 85 ...
Page 119: ...Appendix B Dimensions 108 CPM1 CIF01 90 81 21 30 205 50 56 CPM1 CIF11 90 81 21 30 205 50 61 ...